PIAGGIO Liberty 50 Catalyzed, Workshop Manual

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50cc Version
Dell'Orto
DELLORTO CARBURETTOR
Specification Desc./Quantity
Type PHVA 17.5 RD
Diffuser diameter Ø 17.5
Regulation reference number 8423
Maximum nozzle: 53
Maximum air nozzle (on the body): Ø 1.5
Tapered pin stamped code: A22
Pin position (notches from above): 1
Diffuser: 209 HA
Minimum nozzle: 32
Minimum air nozzle (on the body): Free
Initial minimum mix screw opening: 1 1/2
Starter jet 50
Starter air nozzle (on the body): Ø 1.5
Stroke of starter pin: 11 mm
Gasoline inlet hole Ø 1.5
Overhaul data
Assembly clearances
Cylinder - piston assy.
COUPLING BETWEEN PISTON AND CYLINDER
Name Initials Cylinder Piston Play on fitting
Standard coupling M 40.005 - 40.012 39.943 - 39.95 0.055 - 0.069
Standard coupling N 40.012 - 40.019 39.95 - 39.957 0.055 - 0.069
Standard coupling O 40.019 - 40.026 39.957 - 39.964 0.055 - 0.069
Standard coupling P 40.026 - 40.033 39.964 - 39.971 0.055 - 0.069
coupling 1st oversize M1 40.205 - 40.212 40.143 - 40.15 0.055 - 0.069
coupling 1st oversize N1 40.212 - 40.219 40.15 - 40.157 0.055 - 0.069
coupling 1st oversize O1 40.219 - 40.226 40.157 - 40.164 0.055 - 0.069
coupling 1st oversize P1 40.226 - 40.233 40.164 - 40.171 0.055 - 0.069
Coupling 2nd oversize M2 40.405 - 40.412 40.343 - 40.35 0.055 - 0.069
Coupling 2nd oversize N2 40.412 - 40.419 40.35 - 40.357 0.055 - 0.069
Coupling 2nd oversize O2 40.419 - 40.426 40.357 - 40.364 0.055 - 0.069
Coupling 2nd oversize P2 40.426 - 40.433 40.364 - 40.371 0.055 - 0.069
Liberty 50 Catalyzed
Characteristics
CHAR - 11